If you have a classic, vintage, or otherwise old car, you've probably heard of the distributor that it features. It's part of the ignition system that transfers current from the battery to the ...

It wasn't all that long ago that GM engineers designed the original HEI system to replace the decades old points-type ignitions. In the mid-'70s, leaner mixtures demanded greater voltage and more ...

MSD is a name that's synonymous with high-quality ignition components. With products ranging from coils to rev limiters, the company is probably best known for its array of ignition control boxes that ...

If you're a follower of the "How It Works" series, you've been learning the principles of what makes a car run. You've boned up on the four-stroke cycle, valvetrains, cooling, lubrication, and ...

The ignition (or distributor) cap is where ignition wires that run to the spark plugs receive high-voltage current from the ignition coil. Metal contacts in the cap connect with contacts in the ...

Replacing the distributor cap on my 99' Acura Integra due to misfires in cylinders 3 and 4. Engine was running rough on start up before hand, and the check engine light came on with codes 303 and 304, ...